Relationships between voltage and angle stability of power systems

@article{Vournas1996RelationshipsBV,
  title={Relationships between voltage and angle stability of power systems},
  author={Costas D. Vournas and Peter W. Sauer and M. A. Pai},
  journal={International Journal of Electrical Power \& Energy Systems},
  year={1996},
  volume={18},
  pages={493-500}
}
This paper discusses modelling and theoretical issues associated with voltage and angle stability of power systems. A time-scale decomposition is performed to illustrate how the critical modes can be identified with reduced-order models and the bifurcation phenomena can be explained with these low order models. Examples are given for single and multi-machine systems. 

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References

SHOWING 1-10 OF 24 REFERENCES
The effect of automatic voltage regulation on the bifurcation evolution in power systems
This paper discusses the relationships between types of bifurcations in power systems and their expected occurrence for voltage regulated and unregulated synchronous machines. A time-scaleExpand
Energy Functions, Transient Stability and Voltage Behaviour in Power Systems with Nonlinear Loads
This paper presents preliminary results in a program aimed at energy function analysis of transient behaviour of power systems with nonlinear loads. The model, which preserves the network structure,Expand
Investigation of the effects of load models and generator voltage regulators on voltage stability
Abstract The effects of load models and generator voltage regulators on the voltage stability of power systems are investigated using a 10-machine power system. Results on the dynamic modes ofExpand
Voltage stability analysis using generic dynamic load models
This paper investigates the dynamic nature of voltage stability. Using a generic load model representing the dynamic behaviour of aggregate loads, the mechanism of voltage collapse is revealed byExpand
Voltage stability analysis in transient and mid-term time scales
This paper reviews the general methodology of analysing voltage stability in the mid-term and in the transient time scale. It shows how a simplified simulation of the mid-term dynamics can only beExpand
Dynamic analysis of small signal voltage instability decoupled from angle instability
This paper presents a methodology for dynamic analysis of short term small signal voltage instability in a multi-machine power system. The formulation of the problem is done by decoupling the angleExpand
Nonlinear dynamic load models with recovery for voltage stability studies
Motivated by projects in Sweden on voltage stability analysis and associated load modeling, a simple dynamic load model is proposed which captures the usual nonlinear steady-state behavior plus loadExpand
Voltage stability as affected by static load characteristics
Voltage stability is analysed as a dynamic phenomenon associated with the excitation field dynamics of synchronous machines. It is shown that, for constant impedance loads, a single machineExpand
Concepts of Synchronous Machine Stability as Affected by Excitation Control
The phenomena of stability of synchronous machines under small perturbations is explored by examining the case of a single machine connected to an infinite bus through external reactance.
Voltage stability and controllability indices for multimachine power systems
This paper presents a voltage stability index (VSI) and a voltage controllability index (VCI), related to the eigenvalues of m x m matrices in a multimachine power system made up of m synchronousExpand
...
1
2
3
...